Display device including a motor configured to rotate a display assembly

ABSTRACT

A display device for presenting 3D images is disclosed. The display device includes: a display assembly; a hollow housing assembly, wherein the display assembly is disposed in the housing assembly; a motor connected to the display assembly and configured to drive the display assembly to rotate; and a driving assembly connected to the display assembly and configured to drive the display assembly to display images, wherein the driving assembly includes a wireless power transmission structure and a wireless power reception structure, wherein the wireless power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the wireless power reception structure is wiredly connected to the display assembly and capable of delivering power to the wireless power reception structure by electromagnetic mutual inductance.

This application is a 371 of PCT Application No. PCT/CN2020/130098, filed on Nov. 19, 2020, the disclosure of which is herein incorporated by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of display technologies, and in particular, relate to a display device.

BACKGROUND

With development of display technologies, three-dimensional (3D) display devices are widely concerned for viewing 3D images without requiring viewers to wear glasses, helmets, or other devices.

SUMMARY

The present disclosure provides a display device. The technical solutions are as below.

According to an aspect, there is provided a display device. The display device includes:

a display assembly,

a hollow housing assembly, wherein the display assembly is disposed in the housing assembly;

a motor connected to the display assembly and configured to drive the display assembly to rotate; and

a driving assembly connected to the display assembly and configured to drive the display assembly to display images,

wherein the driving assembly includes a wireless power transmission structure and a wireless power reception structure, wherein the wireless power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the wireless power reception structure is wiredly connected to the display assembly and capable of delivering power to the wireless power reception structure by electromagnetic mutual inductance.

Optionally, the motor includes: a motor body and an output shaft connected to the motor body, and the display assembly includes a first bracket, a second bracket, a display module, and a connecting shaft fixedly connected to the first bracket; wherein

the display module is fixed between the first bracket and the second bracket, and the second bracket is fixedly connected to the wireless power reception structure; and

the connecting shaft is disposed at a side, distal from the display module, of the first bracket, the connecting shaft is provided with a first through hole, and the output shaft is disposed in the first through hole.

Optionally, part of a side surface of the output shaft is a first plane, and part of a side surface of an inner wall of the first through hole is a second plane matched with the first plane, the first plane being in contact with the second plane.

Optionally, the display device further includes a first bearing; wherein the housing assembly includes a first cylinder and a first plate fixedly connected to one end of the first cylinder, the first plate being provided with a second through hole, and an axis of the second through hole being collinear with an axis of the first cylinder; wherein

the first bearing is disposed in the second through hole, and an outer wall of the first bearing is fixedly connected to the first plate via the second through hole; and

the first bearing is sleeved on the connecting shaft, and the connecting shaft is connected to the first bearing rotatably.

Optionally, the first plate is further provided with a third through hole, the third through hole being disposed at an edge of the first plate, and the display device further includes a driving wiring and a strip-shaped first wiring housing; wherein

the first wiring housing is fixedly connected to an inner wall of the first cylinder, and a gap is defined between the first wiring housing and the inner wall of the first cylinder; and

one end of the driving wiring is connected to the wireless power transmission structure, and the other end of the driving wiring passes through the gap and the third through hole and is configured to be connected to the first driving power supply.

Optionally, the display device further includes a motor housing;

wherein the motor housing is fixedly connected to both the motor and the housing assembly.

Optionally, an inside of the housing assembly is made vacuum.

Optionally, the display device further includes a circuit assembly;

wherein the circuit assembly is fixedly connected to both the display assembly and the wireless power reception structure and configured to drive the display assembly to display the images under an action of power received by the wireless power reception structure.

Optionally, the wireless power reception structure includes a receiving plate, the receiving plate being provided with a fourth through hole, and the circuit assembly includes a first support plate, a circuit board, a second support plate, and a support shaft; wherein

the circuit board is disposed between the first support plate and the second support plate, the first support plate is fixedly connected to both the circuit board and the second support plate, a side, distal from the second support plate, of the first support plate is fixedly connected to the display assembly, and a side, distal from the first support plate, of the second support plate is fixedly connected to the receiving plate; and

the side, distal from the first support plate, of the second support plate is fixedly connected to the support shaft, an axis of the support shaft is perpendicular to the second support plate, and the support shaft is disposed in the fourth through hole.

Optionally, the display device further includes a heat radiation assembly and a second bearing; wherein

the heat radiation assembly is fixedly connected to one end, distal from the first plate, of the first cylinder of the housing assembly;

an outer wall of the second bearing is fixedly connected to the heat radiation assembly, the second bearing is sleeved on the support shaft, and the support shaft is rotatably connected to the second bearing; and

the heat radiation assembly is further fixedly connected to the wireless power transmission structure.

Optionally, the heat radiation assembly includes a heat radiation cover, a heat radiation fin, and a one-way valve, wherein

one side of the heat radiation cover is fixedly connected to the end, distal from the first plate, of the first cylinder, and the other side of the heat radiation cover is fixedly connected to the heat radiation fin and the one-way valve; and

the one-way valve is configured to vacuumize a space enclosed by the housing assembly and the heat radiation cover.

Optionally, one side, proximal to the display assembly, of the heat radiation cover is provided with a first groove, and the wireless power transmission structure includes a coil fixing plate, a transmit coil, a transmit plate, and a connecting line; wherein

the transmit coil is fixedly connected to both the coil fixing plate and the transmit plate, the transmit coil and the coil fixing plate are both disposed in the first groove, and the transmit plate is disposed at a side, distal from the housing assembly, of the heat radiation cover; and

the heat radiation cover is provided with a fifth through hole, one end of the connecting line is connected to the transmit coil, and the other end of the connecting line is connected to the transmit plate via the fifth through hole.

Optionally, the heat radiation cover is provided with a sixth through hole, and one end of the driving wiring is connected to the wireless power transmission structure upon passing through the sixth through hole.

Optionally, the display device further includes a column-shaped and hollow second wiring housing fixedly connected to the heat radiation cover;

wherein an axis of the second wiring housing is colinear with an axis of the sixth through hole, and one end of the driving wiring is connected to the wireless power transmission structure upon passing through the sixth through hole and the second wiring housing.

Optionally, the display device further includes an upper cover assembly;

wherein the upper cover assembly is disposed at a side, distal from the housing assembly, of the heat radiation assembly and fixedly connected to the heat radiation assembly.

Optionally, the heat radiation assembly further includes a fan and a fan connecting plate fixedly connected to the fan, and the upper cover assembly includes a cylindrical cover body and a cover plate; wherein

the fan connecting plate is disposed at and fixedly connected to a side, proximal to the housing assembly, of the cover body; and

the cover plate is disposed at and fixedly connected to a side, distal from the housing assembly, of the cover body.

Optionally, a side, distal from the fan connecting plate, of the cover body is provided with a second groove, and the upper cover assembly further includes at least one support column, a first magnet, and a second magnet; wherein

each of the at least one support column is disposed at the side, distal from the housing assembly, of the cover body, one end of the each of the at least one support column is fixedly connected to an inner wall of the second groove, and the other end of the each of the at least one support column is fixedly connected to the first magnet; and

the second magnet is disposed at a side, proximal to the second groove, of the cover plate.

Optionally, a side wall of the cover body is provided with at least one heat radiation hole.

Optionally, the display device further includes a hollow base assembly;

the base assembly is disposed at a side, proximal to the motor, of the housing assembly and fixedly connected to the housing assembly; and

the motor is disposed within and fixedly connected to the base assembly.

Optionally, the base assembly includes a second cylinder and a second plate fixedly connected to one end of the second cylinder; and

the other end of the second cylinder is provided with a plurality of lugs, each lug is provided with a through hole, and each through hole is configured to be connected to the housing assembly.

Optionally, the base assembly further includes an audio playing assembly; wherein

the audio playing assembly is disposed within and fixedly connected to the second cylinder; and

a side wall of the second cylinder is provided with a plurality of sound-transmission holes, and a sound-transmission surface of the audio playing assembly faces the plurality of sound-transmission holes.

Optionally, the side wall of the second cylinder is provided with a first power supply interface and a second power supply interface;

the first power supply interface is connected to the driving assembly and configured to be connected to the first driving power supply; and

the second power supply interface is connected to the motor and configured to be connected to a second driving power supply, and the second driving power supply is configured to supply power to the motor.

Optionally, the base assembly further includes a rubber plug; wherein

the rubber plug configured to seal the first power supply interface and the second power supply interface.

Optionally, the second plate includes a plate body, and a cushion and a support cushion which are fixedly connected to the plate body; wherein

the cushion covers a side, proximal to the second cylinder, of the plate body, and the support cushion is disposed at a side, distal from the second cylinder, of the plate body.

BRIEF DESCRIPTION OF THE DRAWINGS

To describe the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a motor according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a display assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a display assembly according to another embodiment of the present disclosure;

FIG. 5 is an exploded schematic diagram of the display assembly shown in FIG. 3 ;

FIG. 6 is a schematic structural diagram of a housing assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a display device according to another embodiment of the present disclosure;

FIG. 9 is a sectional view of the display device shown in FIG. 8 ;

FIG. 10 is a schematic structural diagram of a motor housing according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a motor housing and a motor according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a circuit assembly and a wireless power reception structure according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a heat radiation assembly and a wireless power reception structure according to an embodiment of the present disclosure;

FIG. 14 is an exploded schematic diagram of the heat radiation assembly and the wireless power reception structure shown in FIG. 13 ;

FIG. 15 is a schematic structural diagram of a heat radiation assembly and a wireless power reception structure according to another embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of a heat radiation assembly and an upper cover assembly according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a base assembly according to an embodiment of the present disclosure;

FIG. 18 is a schematic structural diagram of a second plate according to an embodiment of the present disclosure; and

FIG. 19 is an exploded schematic diagram of the base assembly shown in FIG. 17 .

DETAILED DESCRIPTION

To make the objectives, technical solutions and advantages of the present disclosure clearer, the followings describe the embodiments of the present disclosure in detail with reference to the drawings.

In the related art, a 3D display device includes a display assembly and a motor and a driving assembly which are connected to the display assembly. The motor can drive the display assembly to rotate, and the driving assembly can drive the display assembly to display images. The display assembly displays images to present 3D images by using persistence of vision of human eyes during a process in which the motor drives the display assembly to rotate.

However, in order to enable the driving assembly to drive the display assembly to display images, the driving assembly needs to be connected to an external driving power supply over a power line in addition to being connected to the display assembly. The power supply line is not conducive to the rotation of the display assembly, leading a poor display effect of the 3D display device.

FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. As can be seen from FIG. 1 , the display device 10 may include a display assembly 101, a hollow housing assembly 102, a motor 103 and a driving assembly 104.

The display assembly 101 is disposed within the hollow housing assembly 102. The motor 103 is connected to the display assembly 101 and configured to drive the same to rotate. The driving assembly 104 may be connected to the display assembly 101 and configured to drive the same to display images. In this way, when the motor 103 drives the display assembly 101 to rotate, the driving assembly 104 drives the display assembly 101 to display images, thereby achieving a 3D image effect.

Referring to FIG. 1 , the driving assembly 104 includes a wireless power transmission structure 1041 and a wireless power reception structure 1042. The wireless power transmission structure 1041 is independent from the display assembly 101 and wiredly connected to a first driving power supply. The first driving power supply is configured to supply power to the wireless power transmission structure 1041. The wireless power reception structure 1042 is wiredly connected to the display assembly 101, and the wireless power transmission structure 1041 is capable of delivering power to the wireless power reception structure 1042 by electromagnetic mutual inductance. In this way, the wireless power reception structure 1042 can deliver received power to the display assembly 101, such that the display assembly 101 can display images.

Since the wireless power reception structure 1042 is wiredly connected to the display assembly 101, the wireless power reception structure 1042 can rotate synchronously with the display assembly 101 when the motor 103 drives the display assembly 101 to rotate. The wireless power transmission structure 1041 independent from the display assembly 101 does not rotate synchronously with the display assembly 101. In this way, the driving wiring that connects the first driving power supply and the wireless power transmission structure 1041 does not influence the rotation of the display assembly 101, thereby ensuring a display effect of the display device.

In summary, according to the display device provided by an embodiment of the present disclosure, a wireless power transmission structure can deliver power provided by a first driving power supply to a wireless power reception structure by electromagnetic mutual inductance, and the wireless power reception structure can further deliver power to a display assembly. Since the wireless power transmission structure is independent from the display assembly, when the display assembly is driven by a motor to rotate, a driving wiring that connects the wireless power transmission structure and the first driving power supply does not influence the rotation of the display assembly, thereby achieving a good display effect of the display device.

FIG. 2 is a schematic structural diagram of a motor according to an embodiment of the present disclosure. As can be seen from FIG. 2 , the motor 103 includes a motor body 1031 and an output shaft 1032 connected to the motor body 1031.

FIG. 3 is a schematic structural diagram of a display assembly according to an embodiment of the present disclosure. FIG. 4 is a schematic structural diagram of a display assembly according to another embodiment of the present disclosure. As can be seen from FIGS. 3-4 , the display assembly 101 includes a first bracket 1011, a second bracket 1012, a display module 1013, and a connecting shaft 1014 fixedly connected to the first bracket 1011. The display module 1013 is fixed between the first bracket 1011 and the second bracket 1012. That is, the display module 1013 is fixedly connected to both the first bracket 1011 and the second bracket 1012.

Further, the second bracket is fixedly connected to the wireless power reception structure 1042. The connecting shaft 1014 of the motor 103 is disposed at a side, distal from the display module 1013, of the first bracket 1011, the connecting shaft 1014 is provided with a first through hole (not shown in the figures), and the output shaft 1032 of the motor 103 is disposed in the first through hole. That is, the output shaft 1032 of the motor 103 is connected to the connecting shaft 1014 of the display assembly 101, such that the motor 103 can drive the display assembly 101 to rotate.

As can be seen from FIG. 2 , part of a side surface of the output shaft 1032 is a first plane al. Accordingly, part of a side surface of an inner wall of the first through hole of the connecting shaft 1014 connected to the output shaft 1032 is a second plane (not shown in the figures) matched with the first plane al, and the first plane al is in contact with the second plane.

The part of the side surface of the output shaft 1032 and the part of the side surface of the inner wall of the first through hole are designed to be flat, which can avoid relative rotation of the output shaft 1032 and the connecting shaft 1014 during driving the display assembly 101 to rotate by the motor 103, thereby ensuring that the motor 103 can effectively deliver power to the display assembly 101.

In this embodiment of the present disclosure, the connecting shaft 1014 is disposed in the middle of the first bracket 1011, such that a center line of the display module 1013 and an axis of the connecting shaft 1014 are collinear, where an axis of the connecting shaft 1014 is a rotation axis of the display assembly 101. The display module 1013 is symmetrical about the rotation axis, that is, the gravity center of the display module 1013 is located on the rotation axis, thereby achieving stable rotation of the display assembly 101.

FIG. 5 is an exploded schematic diagram of the display assembly shown in FIG. 3 . As can be seen from FIG. 5 , the display module 1013 includes a display panel 10131, a light homogenizing plate 10132 and a support plate 10133.

The light homogenizing plate 10132 is disposed on the light emitting surface of the display panel 10131, and the light homogenizing plate 10132 is fixedly connected to the light emitting surface of the display panel 10131. The light homogenizing plate 10132 can be used to homogenize light emitted from the display panel 10131. The support plate 10133 is disposed on the non-light emitting surface of the display panel 10131, the support plate 10133 is fixedly connected to the light emitting surface of the display panel 10131, and the support plate 10133 is configured to support the display panel 10131.

Optionally, both sides of the support plate 10133 includes through holes, and the through holes are configured to be fixedly connected to the first bracket 1011 and the second bracket 1012. Further, since the support plate 10133 can be connected to the display panel 10131, and the display panel 10313 is connected to the light homogenizing plate 10132, locations of the display panel 10131, the light homogenizing plate 10132, and the support plate 10133 are all fixed relative to the first bracket 1011 and the second bracket 1012.

In this embodiment of the present disclosure, the light emitting surface of the display panel 10131 and the light homogenizing plate 10132 may be pasted with a double-sided tape, and the non-light emitting surface of the display panel 10131 and the support plate 10133 may be pasted with a double-sided tape. Further, the support plate 10133 may be made of a carbon fiber material, that is, the support plate 10133 may be a carbon fiber plate with advantages of high tensile strength and low density.

FIG. 6 is a schematic structural diagram of a housing assembly according to an embodiment of the present disclosure. As can be seen from FIG. 6 , the housing assembly 102 may include a first cylinder 1021 and a first plate 1022 fixedly connected to one end of the first cylinder 1021. The first plate 1022 is provided with a second through hole 1022 a, and an axis of the second through hole 1022 a is collinear with an axis of the first cylinder 1021.

Optionally, the display assembly 101 is disposed in the first cylinder 1021, and the first cylinder 1021 may be made of a transparent material, such that a user can view, through the first cylinder 1021, images displayed by the display assembly 101 which is disposed in the first cylinder 1021. Certainly, the first cylinder 1021 may also be made of a translucent material, which is not limited in this embodiment of the present disclosure.

Referring to FIG. 6 , the display device 10 may further include a first bearing 105. The first bearing 105 is disposed in the second through hole 1022 a, and an outer wall of the first bearing 105 is fixedly connected to the first plate 1022 via the second through hole 1022 a. The first bearing 105 is sleeved on the connecting shaft 1014, and the connecting shaft 1014 is connected to the first bearing 105 rotatably.

The first bearing 105 is sleeved on the connecting shaft 1014, such that the first bearing 105 can provide effective support for the rotation of the connecting shaft 1014, and ensure reliability of the rotation of the display assembly 101.

FIG. 7 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure. As can be seen from FIG. 7 , the first plate 1022 is further provided with a third through hole 1022 b which is disposed at an edge of the first plate 1022, and the display device 10 may further include a driving wiring (not shown in the figure) and a strip-shaped first wiring housing 106.

The first wiring housing 106 is fixedly connected to an inner wall of the first cylinder 1021, and a gap is defined between the first wiring housing 106 and the inner wall of the first cylinder 1021. One end of the driving wiring is connected to the wireless power transmission structure 1041. The other end of the driving wiring passes through the gap between the first wiring housing 106 and the inner wall of the first cylinder 1021 and passes through the third through hole 1022 b, and is configured to be connected to the first driving power supply. In other words, the wireless power transmission structure 1041 can be connected to the first driving power supply via the driving wiring, such that the first driving power supply supplies power to the wireless power transmission structure 1041.

In this embodiment of the present disclosure, if the first driving power supply and the driving assembly 104 are disposed on different sides of the housing assembly 102, the driving wiring needs to pass through the housing assembly 102, so as to connect the first driving power supply to the wireless power transmission structure 1041 of the driving assembly 104. Since the rotatable display assembly 101 is disposed in the housing assembly 102, the first wiring housing 106 is disposed on the inner wall of the first cylinder 1021 of the housing assembly 102, such that the driving wiring is disposed in the gap between the first wiring housing 106 and the inner wall of the first cylinder 1021. In this way, the driving wiring is prevented from affecting the rotation of the display assembly 101, thereby ensuring a display effect of the display assembly 101.

Referring to FIG. 6 , the housing assembly 102 may further include a first gasket 1023, a second gasket 1024, a third gasket 1025 and a cap 1026. The first gasket 1023 is bonded to a side, distal from the first cylinder 1021, of the first plate 1022. To be specific, the first gasket 1023 is disposed between the motor 103 and the first plate 1022, and the motor 103 is connected to the first plate 1022 via through holes on the first gasket 1023.

The second gasket 1024 is disposed between the first cylinder 1021 and the first plate 1022, the third gasket 1025 is disposed at a side, distal form the first plate 1022, of the first cylinder 1021, and the cap 1026 is disposed at a side, distal from the first cylinder 1021, of the third gasket 1025. In this way, the first cylinder 1021 is connected to the first plate 1022 via through holes on the second gasket 1024, and the first cylinder 1021 is connected to the cap 1026 via through holes on the third gasket 1025.

Optionally, the first gasket 1023, the second gasket 1024 and the third gasket 1025 are all made of rubber, thereby ensuring sealed connection. Further, referring to FIG. 6 , the first gasket 1023, the second gasket 1024 and the third gasket 1025 are all of circular structures.

In this embodiment of the present disclosure, two structures connected to each other have corresponding positioning structures, such that assembly can be performed through the corresponding positioning structures on the two structures to ensure assembly accuracy.

For example, the first plate 1022 is provided with a first positioning structure for assembly with the first gasket 1023, and the first gasket 1023 is provided with a first positioning structure for assembly with the first plate 1022. Therefore, the first plate 1022 and the first gasket 1023 can be assembled by the first positioning structure on the first plate 1022 and the first positioning structure on the first gasket 1023. The first plate 1022 is further provided with a second positioning structure for assembly with the second gasket 1024, and the second gasket 1024 is provided with a first positioning structure for assembly with the first plate 1022. Therefore, the first plate 1022 and the second gasket 1024 can be assembled by the second positioning structure on the first plate 1022 and the first positioning structure on the second gasket 1024.

In this embodiment of the present disclosure, for the corresponding positioning structures on the two structures connected to each other, one may be a positioning hole, and the other may be a positioning rod. The positioning rod is disposed in the positioning hole to achieve positioning. For example, the first positioning structure on the first plate 1022 is a positioning rod, and the first positioning structure on the first gasket 1023 is a positioning hole.

FIG. 8 is a schematic structural diagram of a display device according to another embodiment of the present disclosure. FIG. 9 is a sectional view of the display device shown in FIG. 8 . Referring to FIG. 8 and FIG. 9 , the display device may further include a motor housing 107.

FIG. 10 is a schematic structural diagram of a motor housing according to an embodiment of the present disclosure. FIG. 11 is a schematic structural diagram of a motor housing and a motor according to an embodiment of the present disclosure. As can be seen from FIGS. 8-11 , the motor 103 is disposed in the motor housing 107 which is configured to protect the motor 103 from being damaged.

Further, the motor housing 107 is fixedly connected to both the motor 103 and the housing assembly 102. In this way, relative movement between the motor 103 and the housing assembly 102 can be avoided, and reliability of connection between the motor 103 and the display assembly 101 disposed in the housing assembly 102 can be ensured.

Optionally, the motor housing 107 may be a casing design of the motor 103. The casing design may mean that a shape of a groove in the motor housing 107 for disposing the motor 103 may be the same as an outer shape of the motor 103. The motor housing 107 is connected to the first plate 1022 via the through holes on the first gasket 1023, for example, may be connected by screws. The motor 103 may be a servomotor. Alternatively, the motor 103 may be another type of motor, which is not limited in this embodiment of the present disclosure.

In this embodiment of the present disclosure, the motor housing 107 is provided with a first positioning structure for assembly with the first gasket 1023 of the housing assembly 102, and the first gasket 1023 is provided with a second positioning structure for assembly with the motor housing 107. The motor housing 107 and the first gasket 1023 are assembled by the first positioning structure of the motor housing 107 and the second positioning structure of the first gasket 1023 to ensure assembly accuracy.

As can be seen from FIG. 2 , the motor 103 may include a power supply interface 103 a and a parameter debugging interface 103 b. The parameter debugging interface 103 b is used to adjust parameters such as speed and acceleration of the motor 103.

As can be seen from FIGS. 10-11 , the motor housing 107 is provided with a first outlet 107 a corresponding to the power supply interface 103 a, and a second outlet 107 b corresponding to the parameter debugging interface 103 b. After the motor 103 is put into the motor housing 107 from the bottom of the motor housing 107, a power supply lead wire of the motor 103 may be led out from the first outlet 107 a, and a parameter debugging lead wire of the motor 103 may be led out from the second outlet 107 b.

In addition, after the power supply lead wire is led out from the first outlet 107 a, sealant is applied to a gap between the power supply lead wire and the first outlet 107 a for sealing the power supply lead wire. Further, after the parameter debugging lead wire is led out from the second outlet 107 b, sealant is applied to a gap between the parameter debugging lead wire and the second outlet 107 b for sealing the parameter debugging lead wire.

As can be seen from FIG. 2 and FIG. 10 , the motor 103 is provided with a first connecting hole 103 c, the motor housing 107 is provided with a second connecting hole 107 c, the second connecting hole 107 c and the first connecting hole 103 c are provided with screws, and the motor 103 and the motor housing 107 are connected by the screws.

In this embodiment of the present disclosure, an inside of the housing assembly 102 is made vacuum. Since sound (including noise) cannot propagate through vacuum, the housing assembly 102 which is set to be vacuum can effectively reduce noise when the display assembly 101 rotates in the housing assembly 102, such that user experience is better.

As can been seen from FIG. 8 , the display device 10 further includes a circuit assembly 108 which is fixedly connected to both the display assembly 101 and the wireless power reception structure 1042. The circuit assembly 108 is configured to drive the display assembly 101 to display the images under an action of power received by the wireless power reception structure 1042.

Since the circuit assembly 108 is fixedly connected to both the display assembly 101 and the wireless power reception structure 1042, when the motor 103 drives the display assembly 101 to rotate, both the circuit assembly 108 and the wireless power reception structure 1042 can rotate synchronously with the display assembly 101.

FIG. 12 is a schematic structural diagram of a circuit assembly and a wireless power reception structure according to an embodiment of the present disclosure. As can be seen from FIG. 12 , the wireless power reception structure 1042 includes a receiving plate 10421 which is provided with a fourth through hole 10421 a. The circuit assembly 108 may include a first support plate 1081, a circuit board 1082, a second support plate 1083 and a support shaft 1084.

The circuit board 1082 is disposed between the first support plate 1081 and the second support plate 1083, and the first support plate 1081 is fixedly connected to both the circuit board 1082 and the second support plate 1083. A side, distal from the second support plate 1083, of the first support plate 1081 is fixedly connected to the display assembly 101, and a side, distal from the first support plate 1081, of the second support plate 1083 is fixedly connected to the receiving plate 10421. The side, distal from the first support plate 1081, of the second support plate 1083 is also fixedly connected to the support shaft 1084, an axis of the support shaft 1084 is perpendicular to the second support plate 1083, and the support shaft 1084 is disposed in the fourth through hole 10421 a on the receiving plate 10421.

For example, the axis of the support shaft 1084 is collinear with an axis of the fourth through hole 10421 a. In this way, stability of the circuit assembly 108 which rotates with the display assembly 101 can be ensured, and it can be ensured that the circuit assembly 108 can supply power to the display assembly 101.

Optionally, the circuit board 1082 is fixedly connected to the first support plate 1081 by screws. The second support plate 1083 is disposed at a side, distal from the first support plate 1081, of the circuit board 1082, and the second support plate 1083 is fixedly connected to the first support plate 1081 by screws.

Further, since the circuit board 1082 and the second support plate 1083 are disposed on a same side of the first support plate 1081, an orthographic projection of part, configured to be connected to the first support plate 1081, of the circuit board 1082 onto the first support plate 1081, is not overlapped with an orthographic projection of part, configured to be connected to the first support plate 1081, of the second support plate 1083 onto the first support plate 1081. In this way, the part, configured to be connected to the first support plate 1081, of the circuit board 1082 and the part, configured to be connected to the first support plate 1081, of the second support plate 1083 can be prevented from affecting each other, thereby ensuring normal operation of the circuit assembly 108.

Optionally, the circuit assembly may further include a flexible circuit board (not shown in the figure) connected to the circuit board 1082, and the flexible circuit board is connected to the display assembly 101. The circuit board 1082 is configured to transmit the power received by the wireless power reception structure 1042 to the display assembly 101 via a flexible circuit board, so as to supply power to the display assembly 101. Further, the circuit board 1082 may control display content of the display assembly 101.

In this embodiment of the present disclosure, the first support plate 1081 is provided with a through hole for connecting to the second bracket 1012 in the display assembly 101, and a side, distal from the display module 1013, of the second bracket 1012 is provided with a through hole for connecting to the first support plate 1081. Through holes on the first support plate 1081 and through holes on the second bracket 1012 may be provided with screws, and the first support plate 1081 and the second bracket 1012 are connected by the screws. Further, the first support plate 1081 is provided with a first positioning structure for assembly with the second bracket 1012 of the display assembly 101, and the second bracket 1012 is provided with a first positioning structure for assembly with the first support plate 1081. The first support plate 1081 and the second bracket 1012 are assembled through the first positioning structure on the first support plate 1081 and the first positioning structure on the second bracket 1012 to ensure assembly accuracy.

As can be further seen from FIGS. 8-9 , the display device 10 further includes a heat radiation assembly 109 and a second bearing 110. The heat radiation assembly 109 is fixedly connected to one end, distal from the first plate 1022, of the first cylinder 1021 of the housing assembly 102. An outer wall of the second bearing 110 is fixedly connected to the heat radiation assembly 109, the second bearing 110 is sleeved on the support shaft 1084, and the support shaft 1084 is rotatably connected to the second bearing 110. The heat radiation assembly 109 is further fixedly connected to the wireless power transmission structure 1041.

Since the second bearing 110 is sleeved on the support shaft 1084, the second bearing 110 can provide effective support for rotation of the support shaft 1084, thereby ensuring reliability of rotation of the display assembly 101. Further, since heat generated when the display assembly 101 rotates is high, the heat radiation assembly 109 can be disposed to radiate heat in the housing assembly 102 to prevent the display assembly 101 from being damaged due to excessive temperature, thereby achieving a higher yield rate of the display assembly 101.

In this embodiment of the present disclosure, the heat radiation assembly 109 is fixedly connected to the housing assembly 102, the wireless power transmission structure 1041 is fixedly connected to the heat radiation assembly 109, and the housing assembly 102 is not driven by the motor 103 to rotate, and thus the heat radiation assembly 109 and the wireless power transmission structure 1041 are not rotated. Therefore, when the motor 103 drives the display assembly 101 to rotate, the driving wiring connecting the wireless power transmission structure 1041 and the first driving power supply may be in a stationary state, and the driving wiring does not influence rotation of the display assembly 101, thereby achieving a good display effect of the display assembly 101.

FIG. 13 is a schematic structural diagram of a heat radiation assembly and a wireless power reception structure according to an embodiment of the present disclosure. As can be seen from FIG. 13 , the heat radiation assembly 109 includes a heat radiation cover 1091, a heat radiation fin 1092 and a one-way valve 1093. One side of the heat radiation cover 1091 is fixedly connected to the end, distal from the first plate 1022, of the first cylinder 1021, and the other side of the heat radiation cover 1091 is fixedly connected to the heat radiation fin 1092 and the one-way valve 1093.

The heat radiation fin 1092 is used for heat radiation. The one-way valve 1093 is configured to vacuumize a space enclosed by the housing assembly 102 and the heat radiation cover 1091. The one-way valve 1093 is disposed such that air inside the space enclosed by the housing assembly 102 and the heat radiation cover 1091 can be discharged. In addition, air outside the space enclosed by the housing assembly 102 and the heat radiation cover 1091 cannot enter the area.

FIG. 14 is an exploded schematic diagram of the heat radiation assembly and the wireless power reception structure shown in FIG. 13 . FIG. 15 is a schematic structural diagram of a heat radiation assembly and a wireless power reception structure according to another embodiment of the present disclosure. As can be seen from FIGS. 14-15 , one side, proximal to the display assembly 101, of the heat radiation cover 1091 is provided with a first groove 1091 a, and the wireless power transmission structure 1041 may include a coil fixing plate 10411, a transmit coil 10412, a transmit plate 10413 and a connecting line (not shown in the figure).

The transmit coil 10412 is connected to both the coil fixing plate 10411 and the transmit plate 10413, the transmit coil 10412 and the coil fixing plate 10411 are both disposed in the first groove 1091 a, and the transmit plate 10413 is disposed at a side, distal from the housing assembly 102, of the heat radiation cover 1091. The heat radiation cover 1091 is provided with a fifth through hole (not shown in the figure), one end of the connecting line is connected to the transmit coil 10412, and the other end is connected to the transmit plate 10413 through the fifth through hole. A sealant is applied to a gap between the connecting line and the fifth through hole for sealing the connecting line.

The transmit plate 10413 is configured to connect to a first driving power supply, and the first driving power supply may supply power to the transmit plate 10413. The transmit plate 10413 transmits the received power to the transmit coil 10412 over the connecting line. The transmit coil 10412 may then deliver the power to the wireless power reception structure 1042 by electromagnetic mutual inductance.

As can be seen from FIGS. 13-14 , the heat radiation cover 1091 is provided with a sixth through hole 1091 b, and one end of the driving wiring is connected to the wireless power transmission structure 1041 upon passing through the sixth through hole 1091 b. Certainly, referring to FIGS. 13-14 , the display device 10 further includes a column-shaped and hollow second wiring housing 111. The second wiring housing 111 is disposed at the side, distal from the housing assembly 102, of the heat radiation cover 1091, and is fixedly connected to the heat radiation cover 1091. An axis of the second wiring housing 111 is collinear with an axis of the sixth through hole 1091 b.

One end of the driving wiring is connected to the wireless power transmission structure 1041 upon passing through the sixth through hole 1091 b and the second wiring housing 111. The other end of the driving wiring passes through the gap between the first wiring housing 106 and the inner wall of the first cylinder 1021 and passes through the third through hole 1022 b on the first plate 1022, and is configured to be connected to the first driving power supply.

The second wiring housing 111 is disposed and the driving wiring can pass through the second wiring housing 111, such that a sealant can be applied to a gap between the driving wiring and a through hole through which it passes, so as to seal a space enclosed by the housing assembly 102 and the heat radiation assembly 109.

As can also be seen from FIG. 14 , the heat radiation assembly 109 further includes a fourth gasket 1094 which is disposed at a side, distal from the heat radiation fin 1092, of the heat radiation cover 1091. In addition, the fourth gasket 1094 is bonded to the side, distal from the heat radiation fin 1092, of the heat radiation cover 1091. The fourth gasket 1094 is made of rubber.

Optionally, the heat radiation cover 1091 is provided with a first positioning structure for assembly with the fourth gasket 1094, and the fourth gasket 1094 is provided with a first positioning structure for assembly with the heat radiation cover 1091. The heat radiation cover 1091 and the fourth gasket 1094 are assembled by the first positioning structure on the heat radiation cover 1091 and the first positioning structure on the fourth gasket 1094, so as to ensure assembly accuracy.

As can also be seen from FIGS. 8-9 , the display device 10 may further include an upper cover assembly 112 which is disposed at a side, distal from the housing assembly 102, of the heat radiation assembly 109 and fixedly connected to the heat radiation assembly 109. The upper cover assembly 112 is configured to encapsulate the heat radiation assembly 109, so as to improve appearance of the display device 10.

FIG. 16 is a schematic structural diagram of a heat radiation assembly and an upper cover assembly according to an embodiment of the present disclosure. Referring to FIG. 16 , the heat radiation assembly 109 may further include a fan 1095 and a fan connecting plate 1096 fixedly connected to the fan 1095. The fan 1095 can be used for forced air cooling of the display device 10, so as to ensure a heat radiation effect of the heat radiation assembly 109.

Referring to FIG. 16 , the upper cover assembly 112 may include a cylindrical cover body 1121 and a cover plate 1122. The fan connecting plate 1096 is disposed at and fixedly connected to a side, proximal to the housing assembly 102, of the cover body 1121. The cover plate 1122 is disposed at and fixedly connected to a side, distal from the housing assembly 102, of the cover body 1121. In other words, the fan connecting plate 1096 and the cover plate 1122 are respectively disposed on two sides of the cover body 1121, and both are fixedly connected to the cover body 1121.

In this embodiment of the present disclosure, the fan 1095 is connected to the fan connecting plate 1096 by screws, and the fan connecting plate 1096 is connected to the side, proximal to the housing assembly 102, of the cover body 1121 by screws. Certainly, the fan 1095 and the fan connecting plate 1096, and the fan connecting plate 1096 and the cover body 1121 may alternatively be connected in other ways, which is not limited in this embodiment of the present disclosure.

Referring to FIG. 16 , a side, distal from the fan connecting plate 1096, of the cover body 1121 is provided with a second groove 1121 a. The upper cover assembly 112 further includes at least one support column 1123, a first magnet (not shown in the figure), and a second magnet (not shown in the figure). Four support columns 1123 are shown in FIG. 16 .

Referring to FIG. 16 , each support column 1123 is disposed at the side, distal from the housing assembly 102, of the cover body 1121, one end of each support column 1123 is fixedly connected to an inner wall of the second groove 1121 a, and the other end is fixedly connected to the first magnet. The second magnet is disposed at a side, proximal to the second groove 1121 a, of the cover plate 1122. The cover body 1121 and the cover plate 1122 are connected by using the first magnet and the second magnet, thereby achieving quick assembly or disassembly.

Optionally, a total length of the support column 1123, the first magnet and the second magnet along an extending direction of the support column 1123 is equal to a depth of the second groove 1121 a. Therefore, it can be ensured that the second magnet on the cover plate 1122 can contact the first magnet, and reliability of connection between the cover plate 1122 and the cover body 1121 can be ensured.

In the embodiment of the present disclosure, the fan connecting plate 1096 is disposed at the side, proximal to the housing assembly 102, of the cover body 1121, and the support column 1123 is disposed at the side, distal from the housing assembly 102, of the cover body 1121. Therefore, the fan connecting plate 1096 and the support column 1123 are respectively disposed on both sides of the cover body 1121. In addition, the fan connecting plate 1096 is disposed outside the second groove 1121 a, and the support column 1123 is disposed inside the second groove 1121 a.

In this embodiment of the present disclosure, the cover body 1121 is fixedly connected to the heat radiation cover 1091 of the heat radiation assembly 109 for encapsulating the heat radiation assembly 109. In other words, the heat radiation assembly 109 is disposed inside the upper cover assembly 112. Therefore, a side wall of the cover body 1121 is provided with at least one heat radiation hole 1121 b for heat radiation, so as to prevent the display assembly 101 from being damaged due to an excessively high temperature in the housing assembly 102.

Optionally, sizes of heat radiation holes 1121 b on the cover body 1121 are different. For example, a size of the heat radiation hole 1121 b at a side, proximal to the heat radiation assembly 109, of the cover body 1121 is designed to be larger, and a size of the heat radiation hole 1121 b at a side, distal from the heat radiation assembly 109, of the cover body 1121 is designed to be smaller, because heat of the side, proximal to the heat radiation assembly 109, of the cover body 1121 is greater than heat of the side, distal from the heat radiation assembly 109, of the cover body 1121. In this way, heat radiated by the heat radiation assembly 109 can be radiated through the heat radiation holes 1121 b on the cover body 1121. Certainly, the sizes of the heat radiation holes 1121 b on the cover body 1121 may alternatively be the same, which is not limited in this embodiment of the present disclosure.

In addition, numbers of heat radiation holes 1121 b provided in regions on the cover body 1121 may be different. For example, more heat radiation holes 1121 b are provided at the side, proximal to the heat radiation assembly 109, of the cover body 1121, and fewer heat radiation holes 1121 b are provided at the side, distal from the heat radiation assembly 109, of the cover body 1121. Certainly, the numbers of heat radiation holes 1121 b in the regions on the cover body 1121 may alternatively be the same, which is not limited in this embodiment of the present disclosure.

In this embodiment of the present disclosure, the side, proximal to the housing assembly 102, of the cover body 1121 is provided with a first positioning structure for assembly with the cap 1026 of the housing assembly 102, and the cap 1026 is provided with a first positioning structure for assembly with the cover body 1121. The cover body 1121 and the cap 1026 are assembled by the first positioning structure on the cover body 1121 and the first positioning structure on the cap 1026 to ensure assembly accuracy.

As can further be seen from FIGS. 8-9 , the display device may further include a hollow base assembly 113. The base assembly 113 is disposed at an end, proximal to the motor 103, of the housing assembly 102 and fixedly connected to the housing assembly 102. The motor 103 is disposed within and fixedly connected to the base assembly 113.

Since the motor 103 is disposed inside the base assembly 113, the base assembly 113 can protect the motor 103, thereby avoiding damage to the motor 103, and ensuring that the motor 103 can effectively drive the display assembly 101 to rotate.

FIG. 17 is a schematic structural diagram of a base assembly according to an embodiment of the present disclosure. As can be seen from FIG. 17 , the base assembly 113 may include a second cylinder 1131 and a second plate 1132 fixedly connected to one end of the second cylinder 1131. Referring to FIG. 17 , the base assembly 113 may further include a plurality of lugs 1133 disposed at the other end of the second cylinder 1131, each lug 1133 is provided with a through hole 1133 a, and each through hole 1133 a is configured to be connected to the housing assembly 102.

Optionally, the lug 1133 is connected to the second plate 1132 in the housing assembly 102 by screws. Further, a side, distal from the second plate 1132, of the second cylinder 1131 is provided with a first positioning structure 1131 a for assembly with the first plate 1022 of the housing assembly 102, and the first plate 1022 is provided with a third positioning structure for assembly with the second cylinder 1131. The second cylinder 1131 and the first plate 1022 are assembled by the first positioning structure 1131 a on the second cylinder 1131 and the third positioning structure on the first plate 1022.

Referring to FIG. 17 , the base assembly 113 may further include an audio playing assembly 1134. The audio playing assembly 1134 is disposed within and fixedly connected to the second cylinder 1131. A side wall of the second cylinder 1131 may be provided with a plurality of sound-transmission holes 1131 b, and a sound-transmission surface of the audio playing assembly 1134 may face the plurality of sound-transmission holes 1131 b.

The audio playing assembly 1134 is used to play audio corresponding to images displayed by the audio display assembly 101. As a result, a user can hear the audio corresponding to the images while viewing the images displayed by the display assembly 101, and therefore user experience is better.

Referring to FIG. 17 , the audio playing assembly 1134 may include an audio player 11341, an audio playing circuit board 11342 and a switch button 11343 that are all disposed within the second cylinder 1131. The audio player 11341 is connected to an inner wall of the second cylinder 1131. The audio playing circuit board 11342 is distal from the inner wall of the second cylinder 1131 relative to the audio player 11341, and is connected to the audio player 11341 for driving the audio player 11341 to play audio. The switch button 11343 is fixedly connected to the second plate 1132 and configured to control the audio player 11341 to be turned on or off.

Optionally, the audio player 11341 may be a speaker, and the audio playing circuit board 11342 may be a speaker circuit board.

In this embodiment of the present disclosure, referring to FIG. 18 , the second plate 1132 may include a plate body 11321, and a cushion 11322 and a support cushion 11323 which are fixedly connected to the plate body 11321. The cushion 11322 covers a side, proximal to the second cylinder 1131, of the plate body 11321, and the support cushion 11323 is disposed at a side, distal from the second cylinder 1131, of the plate body 11321. Optionally, the support cushion 11323 and the plate body 11321 may be bonded by a double-sided tape.

In order to ensure stability of the second plate 1132 supporting other devices, the second plate 1132 may include a plurality of support cushions 11323 which are evenly distributed at the side, distal from the second cylinder 1131, of the plate body 11321. Three support cushions 11323 are shown in FIG. 18 .

In this embodiment of the present disclosure, the motor 103 and the motor housing 107 are fixedly connected and placed on the second plate 1132, and is in contact with a side, distal from the plate body 11321, of the cushion 11322. Further, a side, distal from the plate body 11321, of the support cushion 11323 is in contact with a working surface (for example, the ground, a desktop, or the like).

When the motor 103 is in a working state, the motor 103 may vibrate. Therefore, the cushion 11322 is disposed, to provide a buffer for the motor 103, thereby effectively reducing vibration of the motor 103, and ensuring that the display device 10 can work normally. Further, the support cushion 11323 is disposed, such that stability of the base assembly 113 on the working surface is ensured, and the display device 10 is prevented from shaking, that is, stability of the display device is improved.

In this embodiment of the present disclosure, the switch button 11343 of the audio playing assembly 1134 is fixedly connected to the plate body 11321 in the second plate 1132. Since the side, proximal to the second cylinder 1131, of the plate body 11321 is provided with the cushion 11322, to prevent the cushion 11322 from affecting a setting of the switch button 11343, the cushion 11322 is provided with a through hole 11322 a for passing through the switch button 11343. One end of the switch button 11343 is fixedly connected to the plate body 11321 upon passing through the through hole 11322 a.

Optionally, the plate body 11321 and the cushion 11322 are connected to the motor housing 107 by screws. In addition, the plate body 11321 and the cushion 11322 are provided with first positioning structures for assembly with the motor housing 107, and the motor housing 107 is provided with second positioning structures for assembly with the plate body 11321 and the cushion 11322. The plate body 11321, the cushion 11322 and the motor housing 107 are assembled by first positioning structures on the plate body 11321 and the cushion 11322, and second positioning structures on the motor housing 107.

In this embodiment of the present disclosure, after the motor 103 and the motor housing 107 are assembled, the bottom surface (a surface distal from the display assembly 101) of the motor 103 is proximal to the display assembly 101 relative to the bottom surface (a surface distal from the display assembly 101) of the motor housing 107. Therefore, referring to FIG. 18 , the second plate 1132 may further include a protruding structure 11324 disposed at the side, distal from the plate body 11321, of the cushion 11322. One side of the protruding structure 11324 is in contact with the bottom surface of the motor 103, and the bottom surface of the motor housing 107 is in contact with the cushion 11322, to ensure that the second plate 1132 can provide support for both the motor 103 and the motor housing 107, and further ensure structural stability of the display device 10.

Optionally, the protruding structure 11324 and the cushion 11322 are an integral structure, and the cushion 11322, the support cushion 11323 and the protruding structure 11324 are all made of rubber.

FIG. 19 is an exploded schematic diagram of the base assembly shown in FIG. 17 . Referring to FIG. 19 , the side wall of the second cylinder 1131 is provided with a first power supply interface b1 and a second power supply interface b2.

The first power supply interface b1 is connected to the driving assembly 104 over the driving wiring and is configured to be connected to the first driving power supply. Therefore, after the first driving power supply is connected to the first power supply interface b1, the first power supply interface b1 can supply power to the driving assembly 104 over the driving wiring, such that the driving assembly 104 can drive the display assembly 101 to display images.

Further, the second power supply interface b2 is connected to the power supply lead wire of the motor 103 and is configured to be connected to a second driving power supply. Therefore, after the second driving power supply is connected to the second power supply interface b2, the second driving power supply can supply power to the motor 103 over the power supply lead wire of the motor 103, such that the motor 103 can drive the display assembly 101 to rotate.

In this embodiment of the present disclosure, the base assembly 113 may include a rubber plug 1135 configured to seal the first power supply interface b1 and the second power supply interface b2.

In the case where neither the first driving power supply and the first power supply interface b1 nor the second driving power supply and the second power supply interface b2 are connected, in order to prevent an undesired substance (such as dust or water vapor) from entering the first power supply interface b1 and the second power supply interface b2, the rubber plug 1135 is disposed within the first power supply interface b1 and the second power supply interface b2. In this way, impact of the undesired substance on the first power supply interface b1 and the second power supply interface b2 can be avoided, and reliability of connection between the first driving power supply and the first power supply interface b1 and connection between the second driving power supply and the second power supply interface b2 can be ensured.

In this embodiment of the present disclosure, steps of assembling the display device 10 may include the following:

1. The motor 103 is disposed inside the motor housing 107, and the motor 103 is fixedly connected to the motor housing 107 by screws.

2. The motor housing 107 is fixedly connected to the housing assembly 102 by screws.

3. The motor 103 and the motor housing 107 are placed into the second cylinder 1131 of the base assembly 113, and the second cylinder 1131 in the base assembly 113 is fixedly connect to the housing assembly 102 by screws.

4. The second plate 1132 is fixedly connected to the second cylinder 1131 in the base assembly 113 by screws, and the second plate 1132 is fixedly connected to the motor housing 107 disposed inside the second cylinder 1131 by screws.

5. The flexible circuit board in the circuit assembly 108 is connected to the display module 1013 in the display assembly 101, and the first support plate 1081 in the circuit assembly 108 is connected to the second bracket 1012 in the display assembly 101 by screws. 6. The connecting shaft 1014 in the display assembly 101 is disposed within the first bearing 105 which is fixedly connected to the housing assembly 102, and the output shaft 1032 of the motor 103 is disposed in the first through hole of the connecting shaft 1014. 7. The support shaft 1084 in the circuit assembly 108 is disposed within the second bearing 110 which is fixedly connected to the heat radiation assembly 109, and the heat radiation assembly 109 is connected to the housing assembly 103. 8. The cover body 1121 in the upper cover assembly 112 is fixedly connected to the heat radiation assembly 109 by screws. 9. The cover body 1121 is connected to the cover plate 1122 by the first magnet and the second magnet.

Optionally, during an assembly process of the display device 10, when two of multiple structures need to be connected, positioning may be performed first by corresponding positioning structures on the two structures. Then the two structures are fixedly connected by screws. In this way, accuracy of assembly of each structure in the display device can be ensured, and therefore a display effect of the display device is ensured.

In summary, according to the display device provided by an embodiment of the present disclosure, a wireless power transmission structure can deliver power provided by a first driving power supply to a wireless power reception structure by electromagnetic mutual inductance, and the wireless power reception structure can further deliver power to a display assembly. Since the wireless power transmission structure is independent from the display assembly, when the display assembly is driven by a motor to rotate, a driving wiring that connects the wireless power transmission structure and the first driving power supply does not influence the rotation of the display assembly, thereby achieving a good display effect of the display device.

The above descriptions are merely embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent substitutions or improvements that are made within the spirit and principle of the present disclosure should all be included in the protection scope of claims of the present disclosure. 

What is claimed is:
 1. A display device, comprising: a display assembly; a hollow housing assembly, wherein the display assembly is disposed in the housing assembly; a motor connected to the display assembly and configured to drive the display assembly to rotate; and a driving assembly connected to the display assembly and configured to drive the display assembly to display images, wherein the driving assembly comprises a wireless power transmission structure and a wireless power reception structure, wherein the wireless power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the wireless power reception structure is wiredly connected to the display assembly and capable of delivering power to the wireless power reception structure by electromagnetic mutual inductance; the display assembly comprises a first bracket, a second bracket, a display module, and a connecting shaft fixedly connected to the first bracket; wherein the display module is fixed between the first bracket and the second bracket, and the second bracket is fixedly connected to the wireless power reception structure; and the display device further includes a first bearing; wherein the housing assembly comprises a first cylinder and a first plate fixedly connected to one end of the first cylinder, the first plate being provided with a second through hole, and an axis of the second through hole being collinear with an axis of the first cylinder; wherein the first bearing is disposed in the second through hole, and an outer wall of the first bearing is fixedly connected to the first plate via the second through hole; and the first bearing is sleeved on the connecting shaft, and the connecting shaft is connected to the first bearing rotatably.
 2. The display device according to claim 1, wherein the motor comprises a motor body and an output shaft connected to the motor body; wherein; and the connecting shaft is disposed at a side, distal from the display module, of the first bracket, the connecting shaft is provided with a first through hole, and the output shaft is disposed in the first through hole.
 3. The display device according to claim 2, wherein part of a side surface of the output shaft is a first plane, and part of a side surface of an inner wall of the first through hole is a second plane matched with the first plane, the first plane being in contact with the second plane.
 4. The display device according to claim 1, wherein the first plate is further provided with a third through hole, the third through hole being disposed at an edge of the first plate, and the display device further comprises a driving wiring and a strip-shaped first wiring housing; wherein the first wiring housing is fixedly connected to an inner wall of the first cylinder, and a gap is defined between the first wiring housing and the inner wall of the first cylinder; and one end of the driving wiring is connected to the wireless power transmission structure, and another end of the driving wiring passes through the gap and the third through hole and is configured to be connected to the first driving power supply.
 5. The display device according to claim 1, further comprising a circuit assembly; wherein the circuit assembly is fixedly connected to both the display assembly and the wireless power reception structure and configured to drive the display assembly to display the images under an action of power received by the wireless power reception structure.
 6. The display device according to claim 5, wherein the wireless power reception structure comprises a receiving plate, the receiving plate being provided with a fourth through hole, and the circuit assembly comprises a first support plate, a circuit board, a second support plate, and a support shaft; wherein the circuit board is disposed between the first support plate and the second support plate, the first support plate is fixedly connected to both the circuit board and the second support plate, a side, distal from the second support plate, of the first support plate is fixedly connected to the display assembly, and a side, distal from the first support plate, of the second support plate is fixedly connected to the receiving plate; and the side, distal from the first support plate, of the second support plate is fixedly connected to the support shaft, an axis of the support shaft is perpendicular to the second support plate, and the support shaft is disposed in the fourth through hole.
 7. The display device according to claim 6, further comprising a heat radiation assembly and a second bearing; wherein the heat radiation assembly is fixedly connected to one end, distal from the first plate, of the first cylinder of the housing assembly; an outer wall of the second bearing is fixedly connected to the heat radiation assembly, the second bearing is sleeved on the support shaft, and the support shaft is rotatably connected to the second bearing; and the heat radiation assembly is further fixedly connected to the wireless power transmission structure.
 8. The display device according to claim 7, wherein the heat radiation assembly comprises a heat radiation cover, a heat radiation fin, and a one-way valve; wherein one side of the heat radiation cover is fixedly connected to the end, distal from the first plate, of the first cylinder, and another side of the heat radiation cover is fixedly connected to the heat radiation fin and the one-way valve; and the one-way valve is configured to vacuumize a space enclosed by the housing assembly and the heat radiation cover.
 9. The display device according to claim 8, wherein one side, proximal to the display assembly, of the heat radiation cover is provided with a first groove, and the wireless power transmission structure comprises a coil fixing plate, a transmit coil, a transmit plate, and a connecting line; wherein the transmit coil is fixedly connected to both the coil fixing plate and the transmit plate, the transmit coil and the coil fixing plate are both disposed in the first groove, and the transmit plate is disposed at a side, distal from the housing assembly, of the heat radiation cover; and the heat radiation cover is provided with a fifth through hole, one end of the connecting line is connected to the transmit coil, and another end of the connecting line is connected to the transmit plate via the fifth through hole.
 10. The display device according to claim 8, wherein the heat radiation cover is provided with a sixth through hole, and one end of a driving wiring is connected to the wireless power transmission structure upon passing through the sixth through hole.
 11. The display device according to claim 10, further comprising a column-shaped and hollow second wiring housing fixedly connected to the heat radiation cover; wherein an axis of the second wiring housing is colinear with an axis of the sixth through hole, and one end of the driving wiring is connected to the wireless power transmission structure upon passing through the sixth through hole and the second wiring housing.
 12. The display device according to claim 7, further comprising an upper cover assembly; wherein the upper cover assembly is disposed at a side, distal from the housing assembly, of the heat radiation assembly and fixedly connected to the heat radiation assembly.
 13. The display device according to claim 12, wherein the heat radiation assembly further comprises a fan and a fan connecting plate fixedly connected to the fan, and the upper cover assembly comprises a cylindrical cover body and a cover plate; wherein the fan connecting plate is disposed at and fixedly connected to a side, proximal to the housing assembly, of the cover body; and the cover plate is disposed at and fixedly connected to a side, distal from the housing assembly, of the cover body.
 14. The display device according to claim 13, wherein a side, distal from the fan connecting plate, of the cover body is provided with a second groove, and the upper cover assembly further comprises at least one support column; wherein each of the at least one support column is disposed at the side, distal from the housing assembly, of the cover body, and one end of the each of the at least one support column is fixedly connected to an inner wall of the second groove.
 15. The display device according to claim 1, further comprising a hollow base assembly disposed at a side, proximal to the motor, of the housing assembly and fixedly connected to the housing assembly; wherein the motor is disposed within and fixedly connected to the base assembly.
 16. The display device according to claim 15, wherein the base assembly comprises a second cylinder and a second plate fixedly connected to one end of the second cylinder; and another end of the second cylinder is provided with a plurality of lugs, each lug is provided with a through hole, and each through hole is configured to be connected to the housing assembly.
 17. The display device according to claim 16, wherein the base assembly further comprises an audio playing assembly; wherein the audio playing assembly is disposed within and fixedly connected to the second cylinder; and a side wall of the second cylinder is provided with a plurality of sound-transmission holes, and a sound-transmission surface of the audio playing assembly faces the plurality of sound-transmission holes.
 18. The display device according to claim 16, wherein a side wall of the second cylinder is provided with a first power supply interface and a second power supply interface; wherein the first power supply interface is connected to the driving assembly and configured to be connected to the first driving power supply; and the second power supply interface is connected to the motor and configured to be connected to a second driving power supply, and the second driving power supply is configured to supply power to the motor.
 19. The display device according to claim 16, wherein the second plate comprises a plate body, and a cushion and a support cushion which are fixedly connected to the plate body; wherein the cushion covers a side, proximal to the second cylinder, of the plate body, and the support cushion is disposed at a side, distal from the second cylinder, of the plate body. 